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Actuated leg orthotics or prosthetics for amputees

  • US 9,526,635 B2
  • Filed: 05/02/2013
  • Issued: 12/27/2016
  • Est. Priority Date: 01/05/2007
  • Status: Active Grant
First Claim
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1. A prosthetic device comprising:

  • at least one device portion;

    a joint portion for providing for said at least one device portion to pivot about an axis between flexion and extension movements relative to another adjacent device portion or an adjacent limb segment of a user, the joint portion comprising two connectors on opposite sides of the joint portion for connection to the at least one device portion and the another adjacent device portion or the adjacent limb segment of the user, the joint portion further comprising a powered actuator configured to power pivoting between the at least one device portion and said another adjacent device portion or said adjacent limb segment of the user; and

    a compliant transmission assembly in operational communication with said joint portion, said compliant transmission assembly comprising at least one compliant member and a pivot such that the compliant member is configured to pivot relative to said powered actuator about a pivot axis, the pivot axis between the compliant member and the powered actuator being located at a distance from a lower connector of the two connectors that is less than a distance of the axis of the joint portion from the lower connector, the compliant member comprising a deformable and resilient element,wherein said compliant member absorbs energy when a torque is applied between said at least one device portion and said another adjacent prosthetic portion or the adjacent limb segment of the user.

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